Vulnerability Details CVE-2026-67225
RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the stream protocol stored the FrameMax value negotiated during the Tune handshake but did not compare it with an inbound frame's declared length before buffering the frame. With the stream plugin enabled, a remote client could therefore cause excessive memory pressure and denial of service by declaring an oversized frame. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 24.0%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-67225
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.0
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.1
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.10
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.11
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.12
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.13
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.14
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.2
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.3
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.4
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.5
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.6
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.7
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.8
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cpe:2.3:a:broadcom:rabbitmq_server:3.13.9
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.0
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.1
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.10
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.11
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.12
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.13
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.14
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.15
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.16
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.17
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.18
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.19
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.2
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.3
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.4
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.5
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.6
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.7
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.8
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.9
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.0
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.1
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.10
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.2
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.3
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.4
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.5
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.6
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.7
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.8
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.9
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.0
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.1
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.2
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.3
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.4
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.5